<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style>
        div{
            width: 90px;
            height: 90px;
            background-image: url("images/download.jpg");
            border-color: #f56600;
            padding: 50px;
            margin:100px;
        }
        p{
            background-color: lime;
            user-input: 50px;
        }
    </style>
</head>
<body>
<p>段落标签</p>
<h1>标题标签</h1>
<ul>
    <li>列表标签</li>
</ul>
<dl>
    <dt>定义</dt>
    <dd>标签</dd></dl>
    <img src="images/download.jpg" alt="图片"/>
    <input type="text">
<a href="http://www.baidu.com"></a>
<batton>百度一下</batton>
<div>div1
</div>

</body>
</html>